But why would the campaign team implicate Jackie and NGB?
This is my take on it Grahame.
1. He disliked what was being said about him on here and the red.
2. Someone had announced he had died (which was not good at all) I can understand his anger at that.
3. Jackie's thread which caused a right ole commotion in which he posted in and appeared rather angry.
4. He then had words with NGB and made threats.
5 He was banned as a consequence of that argument.
6. He was also banned from the red forum
7. He now receives a threat on his life implicating the two people 3 and 4.
8. He discusses the threatening letter with a contact from the police...He does not make a formal complaint.
9. He then gets in touch with the press and hey up!
10. The reporter makes contact with NGB
11. On the Sunday 19th October it is all in Scotland's Sunday Express hitting front page headlines.
12. Its either a publicity campaign to sell his book
13. He does not say the letter is written by a male or female.
14. It is true and it really did occur
15. If its the latter then it is someone who has a deep grudge on NGB and Jackie.
I think its a bag of bol****ks to be honest.... 
Patti, surely you can't believe that the thoughts of a handful of people on a pro(?) Bamber forum is of ANY significance to a widely known -even if Grahame HAS'T previously heard of him- and respected author.
1. He probably couldn't care less
2. You're right. He wouldn't have liked it.
3. Anger was the appropriate response to it.
4. I imagine he was fighting his corner.
5. A professional hazard. We weren't his buddies. We'd served our purpose.
6. Ditto
7. Had one of those not misleadingly and knowingly implicated themself it wouldn't have been known.
8. It seems he was advised.
9. He turned something negative into a positive. Better for him psychologically.
10. Neil was mentioned. They didn't pull his name from a hat.
11. Basically, it's his local rag.
12. Why NOT make it work for him. Again better psychologically.
13. So why the rush to defend and exonerate a particular person? Thoughts you'd rather NOT have?
14. YES!!! Scary thought, that, isn't it?
15. OR it's someone who has a VERY deep grudge against PH because......................
I hope he takes this further, Patti and I can't believe you don't. The suggestion here, that an author of renown is going to MAKE UP a story of a poison pen letter -let alone one which implicates REAL people- to sell a book guaranteed, because of the genre, to sell, smacks of panic.